Replace Screen Instructions?Support

Guys, my wife dropped her phone and cracked the glass. I am glad to see OEM replacements online for only ~$75. But I am not going to order one until I am confident I will know what to do. I cannot find any disassembly guides, etc. So I would have no idea what screws to start taking out, where to pry, etc. Anybody know how to replace the screen or where there is a guide?